Laboratory tabulator



July 3, 1923. 1,460,917

4 f C. FENAFLOR LABORATORY TABULATOR Filed Sent. 2l. 1921 4 Sheets-Sheetl /Lll .Il ll l-ll N YD July 3, 1923. l,460,917

C.PENAFLOR LABORATORY TABULATOR Filed Sept. 2l, 1921 4 Sheets-Sheet 2314mm 1 hva Dena/Zar Juy 3, 1923. 1,460,917

c. PENAFLOR LABORATORY TABULATOR za O Juy 3, 1923.

c. PENAFLOR LABORATORY TABULATOH Filed sem. 21. 1921 4 Sheets-Sheet 4 MLZ9- ILv Z7 zg I without removing the on the Patented July 3, 1223;

CARMEL@ PNAFLOR, 0F -MANILIL PHILIPPINE ISLANDS.

LABORATORY TBULTOR.

Application filed September 2i, 1921.

To all whom t may concern.:

Be iit known that I, CARMELO PENAFLR, a citizen of the United States,residing at Manila, Philippine Islands, have invented certa-in new anduseful Improvements in a Laboratory Tabulator; and l do hereby de clarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the saine.

The object of the invention is to provide an apparatus .for use in thedifferential counting of blood corpuscles in municipal, college andhospital laboratories and the like in determining the diagnosis ofcertain diseases, and in fact wherever accuracy and reliability areessential, as a means of enabling the investigator, while examining Athe blood microscopically to keep an account yof the appearance of thedifferent classes or types of corpuscles and the numbers of each eyefrom themicroscope to make notations from time to time as in the usualpractice, the objection to the common practice being that there is acontinual strain upon lthe eye of the operator in changing from the viewthrough the lmicroscope to the record upon which the findings arev notedin pencil or otherwise, and hence a fatigue to and disturbance of thenormal functions of the eye which in large establishments where frequentexaminations of this kind are required become burdensome and lead toinaccuracy and hence a failure to attain the desired object; andtherefore specifically the object of the invention is lto provide anapparatus by which the count may be registered vby the operation of thelingers of one hand without removing the eye from the microscope andwith a certainty and `accuracy which cannot be attained in the ordinaryway and with other advantages in the matter of securing percentages,etc. which materially facilitate the work of the diagnostician inreaching conclusions; and with these objects in view the inventionconsists in a construction and combination of agencies of which apreferred embodiment is illustrated in the accompanying drawing,wherein:

' Figure 1 is a. p-lan View of the apparatus.

ff-"Figure 2 is a side view of the apparatus.

Figure 3 is a sectiontaken transversely plane indicated by the line 3--3of Figure 1, p n

of the hand of the operator work while examining the specimen of bloodSerial No. 502,138.

Figure 4 is a plan View of a portion.l of

the counter-mechamsm- Figure 5 is a horizontal sectional view of theconstruction shown in Figure 4.

v n n u i Figure 6 is a vertical section on the plane 60 indicated bythe line 6 6 of Figure i.

Figure 7 is a'- pla-n view of a portion of the counter-mechanism at thetotal end of the apparatus.

Figure 8 is a vertical section showing the totalling mechanism and thesignalling or alarm mechanism in side elevation. f Figure 9 is anenlarged front elevation showing a portion of the counter mechanism, and

Figure 10 is a. detail the resetting spindle. A suitable casingperspective view of 10 having an upper surface 11 suitable to form/anarm or wrist rest for the hand of `the operator serves as a housing fora plurality of counter-mecha- Ynislis which in the constructionillustrated are respectively designated as 12, 13, 14 15 and 16, withwhich are related the operating keys 12a and 16a inclusive, to atotalling 80 counter-mechanism 17.

These keys, of which five are shown in the g, any suitable number may beemdrawin l ployed, and are respectively designated dis- -tinguishably bysuch abbreviations reprei senting different characters or conditions ofcorpuscles as poli, limpho, mono, etc. are adapted to be actuated by thefingers devoted to this through the microscope, the operation of eachkey being registered on the corresponding counter-mechanism which iscorrespondingly designated as shown, each operation of either of thekeys being represented by an addition tothe count on the total countermechanism and the latter beineP operatively connected with-a signallingor alarm mechanism indicated generally at 17a to indicate to theoperator when a composite count represented by tlie successiveoperations of either or all of the keys has aggregated one hundred orany multiple of one hundred up to five hundred, so that by comparing thecount registered on either of mechanism from 12 to 16 with thatindicated on the total counter-mechanism, the percentage of corpusclesof the particular character represented by the first namedcounter-mechanism will be indicated at a glance,

the counter- 7 with the ratchet teeth thereof. Said pawl isk carried bya link 24 mounted concentric with the tubular shaft 21 and connectedwith the stem of the corresponding key, and said pawl is yieldingly heldin engaging relation with the ratchet by a spring 25. The lower end ofthe stem 26 of the key is connected with a second link 27 having afulcrum 28 and is actuable to return the key by a spring 29 or anyequivalent thereof. The units disk is held at its successive adjustmentsdue to the forward step-by-step movement under the actuation of the keyby means of a retaining pawl 30 and motion is communicated from eachdisk of the counter by the usual or any preferred type of transfermechanism common in counters of this general class, operating on themetric principle and where one complete revolution of the disk of lowerdenomination causes a one step forward of the disk of next higherdenomination.

Extending axially through the hollow shafts 21 of the several countermechanisms,

the disks of each of which are mounted in suitable casings 31 secured inthe construc- -tion illustrated to the top or upper wall o the casingl0, is a total spindle 32., extendingthroughout the length of the casingand carrying, forLk each counter-mechanism, a ratchet wheel 33 withwhich cooperates a pawl 34 having an actuating spring 35 so that foreach forward step of the units disk of each counter mechanism thespindle 32 receives a corresponding forward movement, and to thisspindle is attached the units disk 36 of the total counter mechanismfrom which motion-f is communicated to the disks of higher denominationsas indicated with reference to the other counter mechanism to the endthat when either of the counter mechanisms is actuated by the operationof its key, the spindle 32 and hence the units disk of the total countermechanism are correspondingly advanced to the end that the total countermechanism registers the total number of actuations of all of the keysand by comparison as above noted of the registered number on eithercounter mechanism with that of :the total counter-mechanism, a directdetermination of percentage can be reached.

To provide for resetting or returning the parts to their normalpositions after the completion Yof an operation involving the countingof the corpuscles in any given specimen, gears 37 are arranged betweenthe tens and hundreds disks of leach counter mechanism, and meshing witheach 0f the gears is an assemblin gear 38 having a hub 39 revolublymounte in a guide 40 extending parallel with the series of countermechanisms to direct the movements of a resetting spindle 41 to theouter end of which is attached a knob 42 exposed at one end of thecasing as shown in Figures 1 and 2. The resetting spindle is providedwith a radially armed head 43 while the hub of each assembling gear isprovidedwith a seat 44 corresponding with the head to the end that aninterlocking engagement may be effected between the resetting spindleand each assembling gear to permit of the turning o either ofthe latterby means of the former The seats 44 extend completely through the hubsof the assembling gears so that by means of the exposed button 42 theresetting spindle may be engaged with the assembling gear of either ofthe counter mechanisms. When an engagement of the head of the resettingrspindle with a seat in an assembling gear has been effected, the turningof the spindle, to facilitate which the button 42 is peripherallymilled, will cause a corresponding rotation of the meshing gear 37 whichis provided 'with pins 19*l and 20 for engaging corresponding pins onthe tens and hundreds disks to restore them to their normal. initial or,zero positions. The units disk of the corresponding counter may berestored to its zero position by the operation of f the key. i

In order that the operator may beadvised when the total number ofactuations of the operating keys has aggregated one hundred or amultiple of one hundred the hundreds disk of the total counter consistsof a iive tooth ratchet 45 actuable by the tens disk of the said countermechanism. and in operative relation with the teethof said ratchet isthe arm 46 of a hammer 47 pivoted at 48 and adapted to strike a .gong orbell 49. Said hammer is actuated by means of a spring 50. The teeth ofthe ratchet 45 are disposed at a. distance to regster each completerevolution of .the tens disk of the total register, so that while theoperator is notified at the end of each one hundred operations of thekeys, he is -enabled to proceed with the count up to five hundred wherethe task of determining a percentage necessitates :carrying the countinto multiples of one hundred.

While the preferred embodiment of this invention is shown and describedit will be understood that minor changes in the details of constructionand arrangement .of parts may be resorted to within the scope asador? ofwhat is claimed without departing from the spirit of the invention.

-Having thus described what I claim is A tabulator including a casing, aspindle therein, cooperating registering disks journaled on saidspindle, a ratchet wheel movable with one of said disks and locatedexteriorly of the casing, a depressible operating member, a linkextending from said operating member vand pivoted on said spindle, apawl extending upwardly from the invention,

said link and 4engaging said ratchet, a

spring on said link engaging said pawl and urging it .into relation withthe ratchet Wheel,'a link extending from said operating member below andsubstantially parallel to the first link to which the second link ispivoted rising from the base of the casing below said ratchet wheel,said means having a recess, a return spring disposed in said recess andengaging the second mentioned link, a retaining pawl for sai-d ratchetwheel relatively close to said means, a registering mechanism for totalsoperated by said spindles, a ratchet wheel on said spindle, and a pawlcarried by the first mentioned ratchet Wheel and cooperating with thesecond mentioned ratchet wheel.

ln testimony whereof I affix my signature in presence of two witnesses.

CARMELO rinwirnoii.

